KR102167795B1 - Cutting device - Google Patents

Abstract

Disclosed is a cutting apparatus capable of preventing deformation and damage of a tube when cutting the tube, and securing excellent quality of the cut surface to prevent post-processing or reprocessing. The cutting apparatus according to an embodiment of the present invention comprises: a workpiece fixing unit configured to fix the tube by pressing the outer surface of the tube; a rotation unit configured to receive the workpiece fixing unit inside and rotate along the outer circumferential surface of the tube; a cutting unit disposed on the outer surface of the rotation unit and configured to cut the tube by pressing the outer circumferential surface of the tube stepwise while being rotated along the outer circumferential surface of the tube by the rotation unit; and a control unit configured to control the workpiece fixing unit, the rotation unit, and the cutting unit.

Description

Cutting device {Cutting device}

The present invention relates to a cutting device, and more particularly, to a cutting device for cutting a tubular tube to a predetermined length.

In general, pipes are products that are used in a wide variety of industries, and products of various diameters and lengths are widely used.

In recent years, as the demand pattern gradually decreases in various types and small quantities, the demand for small-diameter pipes is increasing, and accordingly, small-diameter pipes of various lengths are required.

Therefore, pipe manufacturers, processing companies, etc. are essentially equipped with a pipe cutter for cutting small-diameter pipes.

A typical pipe cutter includes a body fixing the pipe and a sawtooth cutter that cuts the pipe fixed to the body while descending downward.

However, since the cutter provided in the conventional pipe cutter is formed in the shape of a grinder blade and cuts while pressing the small-diameter pipe in a direction perpendicular to the axial direction of the small-diameter pipe, burrs on the cut surface of the small-diameter pipe In addition to the occurrence of, there is a problem that the quality of the cut surface is uneven, and the cut part is deformed or damaged due to the strong pressure applied during cutting.

In addition, the conventional pipe cutter has a problem in that dust or debris is scattered around a small diameter pipe contacting the cutter rotating at high speed, resulting in a safety accident.

The present invention was conceived to solve the above problems, and an object of the present invention is a cutting device capable of preventing deformation and breakage of the tube when cutting the tube, and preventing post-processing or reprocessing due to the excellent quality of the cut surface. Is to provide.

The subject of the present invention is not limited to the problems mentioned above, and other problems that are not mentioned will be clearly understood by those skilled in the art from the following description.

A cutting device according to an embodiment of the present invention for solving the above problem includes: a workpiece fixing unit configured to fix the tube by pressing the outer surface of the tube; A rotation unit configured to receive the work fixing unit inside and rotate along the outer circumferential surface of the tube; A cutting unit disposed on an outer surface of the rotating unit and configured to cut the tube by stepwise pressing the outer circumferential surface of the tube while being rotated along the outer circumferential surface of the tube by the rotating unit; And a control unit configured to control the work fixing unit, the rotation unit, and the cutting unit.

It is disposed under the rotation unit and the control unit to support the rotation unit and the control unit, and is configured to transfer the work fixing unit, the rotation unit, the cutting unit and the control unit to one side or the other side along the axial direction of the tube. Transfer plate; It is installed on the transfer plate and disposed at the rear of the work fixing part, and supports the tube at a position spaced apart from the work fixing part by a preset distance, or moves the tube in the axial direction of the tube while moving the tube to the work fixing part. Work piece transfer unit configured to be supplied to; And a workpiece storage unit disposed in front of the rotation unit to receive a chip falling downward of the tube when the tube is cut, and to guide the cut tube in one direction to receive therein, the The workpiece fixing unit may include a chuck including a plurality of jaws disposed at equal intervals along the outer circumferential surface of the tube and configured to press the outer circumferential surface of the tube; A plurality of inner diameter adjustment units disposed at equal intervals along the outer circumferential surface of the chuck and configured to simultaneously press two jaws, respectively; A clamping portion of the box disposed at equal intervals along the outer circumferential surface of the plurality of inner diameter adjusting portions and configured to simultaneously press the two inner diameter adjusting portions; And a clamping control unit connected to the plurality of clamping units and disposed on an outer surface of the rotating unit, and configured to control the plurality of clamping units through a user's manipulation, wherein the plurality of inner diameter adjusting units include an outer peripheral surface of the two jaws. A first pressure pad configured to pressurize; A pad transfer shaft screwed to the first pressure pad and configured to generate a rotational force to bring the first pressure pad into close contact with the outer circumferential surfaces of the two sets, or to separate them from the outer circumferential surfaces of the two sets; And a transfer shaft control motor configured to rotate the pad transfer shaft, wherein the plurality of clamping units include: a second pressure pad configured to press the outer peripheral surfaces of the two first pressure pads; A pressure cage connected to the clamping control unit and configured to be moved toward the second pressure pad by the clamping control unit or spaced apart from the second pressure pad; And an elastic member disposed between the second pressure pad and the pressure cage, and configured to elastically support the second pressure pad and the pressure cage, wherein the rotation unit includes the chuck therein, A rotating drum disposed on one side and configured to rotate along a circumference of the chuck; And a drum driving motor coupled to the rotating drum and configured to rotate the rotating drum, wherein the cutting unit is installed on one surface of the rotating drum and rotated by the rotating drum, and disposed outside the rotating drum. A support frame disposed around the tube; A first cutting unit disposed inside the support frame and configured to stepwise cut the outer peripheral surface of the tube by a predetermined depth while being rotated by the support frame; And a second cutting unit disposed inside the support frame and disposed opposite to the first cutting unit, and configured to stepwise cut the outer peripheral surface of the tube by a preset depth while being rotated by the support frame, the The second cutting unit cuts the outer circumferential surface of the tube while moving along the portion cut by the first cutting unit, and the first cutting unit and the second cutting unit have different cutting depths, and the first cutting The unit includes: a first spacing adjusting unit configured to adjust a cutting depth of the first cutting unit by adjusting a spacing between the first cutting unit and the tube; A first rotating cutter configured to cut the tube while pressing the outer peripheral surface of the tube stepwise by the first gap adjusting unit; And a first conveying unit configured to separate the first rotating cutter from the tube by pressing the first gap adjusting part, wherein the first gap adjusting part is disposed on an inner surface of the support frame, and the first 1 a first rack gear configured to enable position adjustment along a vertical direction with respect to the moving direction of the spacing adjustment unit; A first pinion gear meshed with the first rack gear and configured to move along the first rack gear by generating a rotational force; The first rotating cutter and the first pinion gear are disposed inside, and while being moved by the first pinion gear, the distance between the first rotating cutter and the tube is adjusted, and the first rack gear is the A first transfer jig configured to be pressurized by the first transfer unit to be spaced apart from the tube when spaced apart from the first pinion gear; And a first gap control motor configured to rotate the first pinion gear, wherein the first rotating cutter includes: a first outer gear having a ring shape in which a plurality of gear teeth are formed along an inner circumferential surface; A first inner gear disposed inside the first outer gear and having a plurality of gear teeth formed along an outer peripheral surface thereof; It is disposed between the first external gear and the first internal gear, and rotates while being engaged with the first internal gear when the first internal gear rotates while transmitting a rotational force to the first external gear to rotate the first external gear A plurality of first transmission gears; It is disposed on one surface of the first external gear at equal intervals along the circumferential direction of the first external gear and selectively contacts the tube while being rotated by the first external gear, and the tube is rotated when the rotating drum is rotated. A plurality of first cutting bits configured to cut the tube by pressing the outer surface of the tube while being rotated along the outer peripheral surface of the tube; A first cutting control motor configured to rotate the first inner gear; And a first bite support coupled to the first inner gear and rotated together with the first inner gear, and configured to press the plurality of first cutting bites in a radial direction of the first inner gear, and the plurality of The first cutting bite of is formed in different shapes, and the first bite support part, a rotating body that is coupled to the first inner gear and rotated by the first inner gear; A plurality of sockets disposed at equal intervals along the outer circumferential surface of the rotating body; A plurality of support brackets supporting the plurality of first cutting bits; And a plurality of elastic members disposed between the plurality of sockets and the plurality of support brackets, and configured to elastically support the plurality of support brackets to press the plurality of support brackets toward the plurality of first cutting bits. Including, the second cutting unit, by adjusting the distance between the second cutting unit and the tube, a second gap adjusting unit configured to adjust the cutting depth of the second cutting unit; A second rotating cutter configured to cut the tube while pressing the outer peripheral surface of the tube stepwise by the second gap adjusting unit; And a second conveying unit configured to separate the second rotating cutter from the tube by pressing the second gap adjusting part, wherein the second gap adjusting part is disposed on an inner surface of the support frame, and the second 2 a second rack gear configured to enable position adjustment along a vertical direction with respect to the moving direction of the spacing adjustment unit; A second pinion gear meshed with the second rack gear and configured to move along the second rack gear by generating a rotational force; The second rotating cutter and the second pinion gear are disposed inside, and while being moved by the second pinion gear, the distance between the second rotating cutter and the tube is adjusted, and the second rack gear is the A second transfer jig configured to be separated from the tube by being pressurized by the second transfer unit when spaced apart from the second pinion gear; And a second gap control motor configured to rotate the second pinion gear, wherein the second rotating cutter includes: a second outer gear in a ring shape having a plurality of gear teeth formed along an inner circumferential surface; A second inner gear disposed inside the second outer gear and having a plurality of gear teeth formed along an outer peripheral surface thereof; It is disposed between the second external gear and the second internal gear, and when the second internal gear rotates, the second external gear rotates by transmitting a rotational force to the second external gear while being engaged with the second internal gear and rotating. A plurality of second transmission gears; It is disposed on one surface of the second external gear at equal intervals along the circumferential direction of the second external gear and selectively contacts the tube while being rotated by the second external gear, and when the rotating drum rotates, the tube A plurality of second cutting bits configured to cut the tube by pressing the outer surface of the tube while being rotated along the outer peripheral surface of the tube; A second cutting control motor configured to rotate the second inner gear; And a second bite support coupled to the second inner gear and rotated together with the second inner gear, and configured to press the plurality of second cutting bites in a radial direction of the second inner gear, and the plurality of The second cutting bite of is formed in different shapes, and the second bite support includes a rotating body that is coupled to the second inner gear and rotated by the second inner gear; A plurality of sockets disposed at equal intervals along the outer circumferential surface of the rotating body; A plurality of support brackets supporting the plurality of second cutting bits; And a plurality of elastic members disposed between the plurality of sockets and the plurality of support brackets, and configured to elastically support the plurality of support brackets to press the plurality of support brackets toward the plurality of second cutting bits. Including, the workpiece transfer unit, a tube support unit disposed at the rear of the rotation unit to support the tube, and configured to pressurize the tube to transfer the tube; And a tube transfer unit configured to transfer the tube support unit, wherein the tube support unit comprises: a tube support bracket coupled to the tube transfer unit and transferred by the tube transfer unit; A first tube support module disposed on a lower side of the tube support bracket and configured to support a lower portion of the tube accommodated inside the tube support bracket; A second tube support module disposed on one side of the tube support bracket and configured to support one side of the tube accommodated inside the tube support bracket; And a third tube support module disposed on the other side of the tube support bracket and configured to support the other side of the tube accommodated inside the tube support bracket, wherein the first tube support module and the second tube support The module and the third tube support module may include: a support roller configured to support while pressing the tube in a radial direction of the tube or to move while pressing the tube in an axial direction of the tube; A roller drive motor configured to rotate the support roller; A roller support bracket configured to rotatably support the support roller and move the support roller in a radial direction of the tube; And a roller conveying part configured to move the roller support bracket in a radial direction of the tube while extending or contracting, and the tube conveying unit is disposed above the conveying plate and has a spiral shape on an outer peripheral surface along the axial direction. A drive shaft in which a groove is formed; A plurality of support units installed on the transfer plate to rotatably support one side and the other side of the drive shaft; A drive shaft rotation motor configured to rotate the drive shaft; And a transfer nut screwed to an outer circumferential surface of the drive shaft and moving along the outer surface of the drive shaft while moving the tube support unit coupled to the upper side when the drive shaft rotates. The workpiece storage unit may include: a first storage unit coupled to the transfer plate and disposed in front of the rotating drum, and configured to accommodate cutting chips falling downward of the tube when the tube is cut; A second storage unit configured to receive the tube cut by the cutting unit therein; And a tube guide member disposed between the first storage unit and the second storage unit, and configured to guide a cut-off tube to the second storage unit.

It may further include a position control unit disposed below the transfer plate to transfer the transfer plate along the axial direction of the tube and to support the tube from the rear of the work transfer unit.

The position control unit may include a fixing plate mounted and fixed to an installation surface; A driving unit disposed on the fixed plate and coupled to the transfer plate to transfer the transfer plate along the axial direction of the tube; A guide rail configured to guide the drive unit in the axial direction of the tube; And a tube support disposed at the rear of the workpiece transfer unit and configured to support the tube, wherein the drive unit is disposed above the fixing plate and has a spiral groove formed on an outer circumferential surface along a longitudinal direction thereof. ; A plurality of support units rotatably supporting one side and the other side of the screw shaft; A shaft drive motor configured to rotate the screw shaft; A transfer block coupled to the lower surface of the transfer plate and screwed to the outer peripheral surface of the screw shaft, and configured to transfer the transfer plate while being moved along the outer surface of the screw shaft when the screw shaft rotates; And a slide block that is coupled to a bottom surface of the transfer plate and disposed on a shopping mall guide rail, and slides along the guide rail when the transfer plate is moved.

According to an embodiment of the present invention, since the cutting part rotates the circumference of the tube at low speed and cuts the outer surface of the tube in stages, it prevents deformation and damage of the cut part when cutting the tube, and the quality of the cut surface is excellent, so that the post process Or it can prevent reprocessing.

In addition, since the cutting unit cuts the tube while rotating at a low speed, dust is not generated, and chips generated during cutting can be prevented from falling below the tube and scattering around the tube.

In addition, it is possible to significantly reduce working time through a plurality of cutting units, thereby improving productivity, and multiple support and fixation of the tube through the inner diameter adjusting part and the clamping part, and the torsion of the tube due to the load applied to the tube during cutting and By blocking vibration, a more precise cutting operation may be possible.

In addition, each cutting unit can precisely adjust the gap between the tube and the cutting bite through the gap adjusting part and the bite support part, so that the depth at which the cutting bite cuts the tube according to the material, thickness, diameter, etc. Through the rotating structure, a plurality of cutting bits can be selectively replaced, allowing the tube to be cut under various conditions.

In addition, by providing a workpiece transfer unit and a tube support at the rear of the cutting unit, the tube is transferred to the cutting unit by a set length, and the tube is supported at a plurality of positions, thereby preventing sagging of the tube and bending deformation of the tube.

The effects according to the present invention are not limited by the contents exemplified above, and more various effects are included in the present invention.

1 is a front view showing a cutting device according to an embodiment of the present invention.
2 is a side view showing a cutting device according to an embodiment of the present invention.
3 is a plan view showing a cutting device according to an embodiment of the present invention.
4 is a view schematically showing the internal structure of a workpiece fixing portion of a cutting device according to an embodiment of the present invention.
5 is a front view showing a cutting part of a cutting device according to an embodiment of the present invention.
6 is a front view showing a first cutting unit of a cutting device according to an embodiment of the present invention.
7 is a front view showing a second cutting unit of the cutting device according to an embodiment of the present invention.
8 is a front view schematically showing the tube support unit of the cutting device according to an embodiment of the present invention.

Hereinafter, various embodiments will be described in more detail with reference to the accompanying drawings. The embodiments described in this specification may be variously modified. Certain embodiments may be depicted in the drawings and described in detail in the detailed description. However, specific embodiments disclosed in the accompanying drawings are only intended to facilitate understanding of various embodiments. Therefore, the technical idea is not limited by the specific embodiments disclosed in the accompanying drawings, and it is to be understood as including all equivalents or substitutes included in the spirit and scope of the invention.

Terms including ordinal numbers such as first and second may be used to describe various elements, but these elements are not limited by the above-described terms. The above-described terms are used only for the purpose of distinguishing one component from other components.

In the present specification, terms such as "comprises" or "have" are intended to designate the presence of features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, but one or more other features. It is to be understood that the presence or addition of elements or numbers, steps, actions, components, parts, or combinations thereof, does not preclude in advance. When a component is referred to as being "connected" or "connected" to another component, it is understood that it may be directly connected or connected to the other component, but other components may exist in the middle. Should be. On the other hand, when a component is referred to as being "directly connected" or "directly connected" to another component, it should be understood that there is no other component in the middle.

Meanwhile, a "module" or "unit" for a component used in the present specification performs at least one function or operation. In addition, the "module" or "unit" may perform a function or operation by hardware, software, or a combination of hardware and software. In addition, a plurality of "modules" or a plurality of "units" excluding "module" or "unit" to be performed in specific hardware or performed by at least one processor may be integrated into at least one module. Singular expressions include plural expressions unless the context clearly indicates otherwise.

In addition, in describing the present invention, when it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be abbreviated or omitted.

1 is a front view showing a cutting device according to an embodiment of the present invention, Figure 2 is a side view showing a cutting device according to an embodiment of the present invention, Figure 3 is a plan view showing a cutting device according to an embodiment of the present invention .

1 to 3, the cutting device 1 (hereinafter referred to as'cutting device 1') according to an embodiment of the present invention includes a workpiece fixing part 11, a rotating part 12, and a cutting part 13 ) And a control unit 14.

The work fixing part 11 is configured to fix the tube T by pressing the outer surface of the tube T.

4 is a view schematically showing the internal structure of a workpiece fixing portion of a cutting device according to an embodiment of the present invention.

Referring to FIG. 4, the workpiece fixing part 11 may include a chuck 111, a plurality of inner diameter adjusting parts 112, a clamping part 113 of a box, and a clamping control part 114.

The chuck 111 may include a plurality of jaws 111A disposed at equal intervals along the outer circumferential surface of the tube T and configured to press the outer circumferential surface of the tube T.

The plurality of inner diameter adjustment units 112 are disposed at equal intervals along the outer circumferential surface of the chuck 111 and can simultaneously press the two jaws 111A according to a control command of the control unit 14.

The plurality of inner diameter adjustment units 112 may include a first pressure pad 112A, a pad transfer shaft 112B, and a transfer shaft control motor 112C.

The first pressing pad 112A may pressurize the outer circumferential surfaces of the two jaws 111A at a time.

The pad transfer shaft 112B is screwed to the first pressure pad 112A, and generates a rotational force so that the first pressure pad 112A is in close contact with the outer circumferential surfaces of the two jaws 111A, or two jaws 111A It can be separated from the outer peripheral surface of

The transfer shaft control motor 112C may rotate the pad transfer shaft 112B.

The clamping parts 113 of the vox are disposed at equal intervals along the outer circumferential surfaces of the plurality of inner diameter adjusting parts 112, and each of the two inner diameter adjusting parts 112 can be simultaneously pressed.

The plurality of clamping parts 113 may include a second pressure pad 113A, a pressure cage 113B, and an elastic member 113C.

The second pressing pad 113A may press the outer peripheral surfaces of the two first pressing pads 112A at a time.

The pressure cage 113B is connected to the clamping control unit 114, and may be moved toward the second pressure pad 113A by the clamping control unit 114, or may be spaced apart from the second pressure pad 113A.

The elastic member 113C is disposed between the second pressure pad 113A and the pressure cage 113B, and may elastically support the second pressure pad 113A and the pressure cage 113B.

1 to 4, the clamping control unit 114 is connected to the plurality of clamping units 113 and disposed on the outer surface of the rotating unit 12, and controls the plurality of clamping units 113 through user manipulation. I can. For example, the clamping control unit 114 may be formed in the form of a lever operable by a user.

1 to 3, the rotating part 12 is configured to accommodate the work fixing part 11 inside and rotated along the outer circumferential surface of the tube T.

The rotating part 12 may include a rotating drum 121 and a drum driving motor 122.

The rotating drum 121 has a chuck 111 disposed therein, a cutting part 13 disposed on one surface thereof, and may be rotated along the circumference of the chuck 111 by the drum driving motor 122. For example, the rotating drum 121 may be rotated at a preset speed by the drum driving motor 122.

The drum driving motor 122 may be coupled to the rotating drum 121 to rotate the rotating drum 121.

The cutting part 13 is disposed on the outer surface of the rotating part 12 and rotated along the outer circumferential surface of the tube T by the rotating part 12 to cut the tube T by pressing the outer circumferential surface of the tube T step by step. Is composed.

Figure 5 is a front view showing a cutting unit of the cutting device according to an embodiment of the present invention, Figure 6 is a front view showing a first cutting unit of the cutting device according to an embodiment of the present invention, Figure 7 is an embodiment of the present invention It is a front view showing the second cutting unit of the cutting device according to.

Referring to FIG. 5, the cutting part 13 may include a support frame 131, a first cutting unit 132 and a second cutting unit 133.

The support frame 131 is installed on one surface of the rotating drum 121 and rotated by the rotating drum 121, and may be disposed around a tube T disposed outside the rotating drum 121.

The first cutting unit 132 may be disposed inside the support frame 131 and rotated by the support frame 131 to cut the outer circumferential surface of the tube T stepwise by a preset depth.

Referring to FIG. 6, the first cutting unit 132 may include a first gap adjusting unit 132A, a first rotating cutter 132B, and a first conveying unit 132C.

The first spacing control unit 132A may adjust the cutting depth of the first cutting unit 132 by adjusting the spacing between the first cutting unit 132 and the tube T.

The first gap control unit 132A may include a first rack gear 132A1, a first pinion gear 132A2, a first transfer jig 132A3, and a first gap control motor 132A4.

The first rack gear 132A1 is disposed on the inner surface of the support frame 131 and may be positioned in a vertical direction with respect to the moving direction of the first space control unit 132A.

The first pinion gear 132A2 is meshed with the first rack gear 132A1 and may be moved along the first rack gear 132A1 by generating a rotational force.

The first transfer jig 132A3 may have a first rotating cutter 132B and a first pinion gear 132A2 disposed therein. And, the first transfer jig (132A3) is moved by the first pinion gear (132A2) to adjust the distance between the first rotating cutter (132B) and the tube (T), and the first rack gear (132A1) is 1 When spaced apart from the pinion gear (132A2), it is pressurized by the first transfer unit (132C) to be spaced apart from the tube (T).

The first gap control motor 132A4 may be configured to rotate the first pinion gear 132A2.

The first rotating cutter 132B may cut the tube T while pressing the outer circumferential surface of the tube T stepwise by the first spacing control unit 132A.

The first rotating cutter 132B includes a first external gear 132B1, a first internal gear 132B2, a plurality of first transmission gears 132B3, a plurality of first cutting bits 132B4, and a first cutting control motor. It may include (132B5) and the first bite support (132B6).

The first external gear 132B1 may be formed in a ring shape in which a plurality of gear teeth are formed along an inner circumferential surface.

The first inner gear 132B2 is disposed inside the first outer gear 132B1, and a plurality of gear teeth may be formed along the outer circumferential surface.

The plurality of first transmission gears 132B3 are disposed between the first external gear 132B1 and the first internal gear 132B2, and rotate by meshing with the first internal gear 132B2 when the first internal gear 132B2 is rotated. As a result, the first external gear 132B1 may be rotated by transmitting a rotational force to the first external gear 132B1.

The plurality of first cutting bites 132B4 are disposed at equal intervals along the circumferential direction of the first external gear 132B1 on one surface of the first external gear 132B1, and rotated by the first external gear 132B1. The tube T is selectively contacted, and when the rotating drum 121 rotates, the tube T can be cut by pressing the outer surface of the tube T while rotating along the outer circumferential surface of the tube T. For example, the plurality of first cutting bits 132B4 may be formed in different shapes.

The first cutting control motor 132B5 may be configured to rotate the first internal gear 132B2.

The first bite support 132B6 is coupled to the first inner gear 132B2 and rotates together with the first inner gear 132B2, and a plurality of first cutting bites 132B4 in the radial direction of the first inner gear 132B2 Can pressurize.

The first bite support part 132B6 may include a rotating body RB, a plurality of sockets S, a plurality of support brackets SB, and a plurality of elastic members SM.

The rotating body RB may be coupled to the first internal gear 132B2 and rotated by the first internal gear 132B2.

A plurality of sockets (S) may be spaced apart at equal intervals along the outer peripheral surface of the rotating body (RB).

The plurality of support brackets SB may support the plurality of first cutting bits 132B4.

A plurality of elastic members (SM) are disposed between the plurality of sockets (S) and the plurality of support brackets (SB), and elastically support the plurality of support brackets (SB) to support the plurality of support brackets (SB). It can be pressed toward the first cutting bite 132B4.

The first conveying unit 132C may press the first spacing control part 132A to separate the first rotating cutter 132B from the tube T. For example, the first conveying unit 132C may be configured to pressurize the first spacing control unit 132A to hydraulic pressure, or press the first spacing control unit 132A through mechanical elastic means such as a spring. .

Again, referring to FIG. 5, the second cutting unit 133 is disposed inside the support frame 131 to face the first cutting unit 132, and rotated by the support frame 131, while the tube T ) May be configured to cut the outer peripheral surface step by step by a preset depth.

The second cutting unit 133 cuts the outer circumferential surface of the tube T while moving along the portion cut by the first cutting unit 132, and the first cutting unit 132 and the second cutting unit 133 They can have different depths of cut.

Referring to FIG. 7, the second cutting unit 133 may include a second gap adjusting unit 133A, a second rotating cutter 133B, and a second conveying unit 133C.

The second gap adjusting part 133A may adjust the cutting depth of the second cutting unit 133 by adjusting the gap between the second cutting unit 133 and the tube T.

The second gap control unit 133A may include a second rack gear 133A1, a second pinion gear 133A2, a second transfer jig 133A3, and a second gap control motor 133A4.

The second rack gear 133A1 is disposed on the inner surface of the support frame 131 and may be positioned in a vertical direction with respect to the moving direction of the second space adjusting unit 133A.

The second pinion gear 133A2 is meshed with the second rack gear 133A1 and may be moved along the second rack gear 133A1 by generating a rotational force.

The second transfer jig 133A3 may have a second rotating cutter 133B and a second pinion gear 133A2 disposed therein. And, the second transfer jig (133A3) is moved by the second pinion gear (133A2) to adjust the distance between the second rotating cutter (133B) and the tube (T), and the second rack gear (133A1) is 2 When spaced apart from the pinion gear (133A2), it is pressurized by the second transfer unit (133C) to be spaced apart from the tube (T).

The second gap control motor 133A4 may be configured to rotate the second pinion gear 133A2.

The second rotating cutter 133B may cut the tube T while pressing the outer circumferential surface of the tube T stepwise by the second spacing control unit 133A.

The second rotating cutter 133B includes a second external gear 133B1, a second internal gear 133B2, a plurality of second transmission gears 133B3, a plurality of second cutting bits 133B4, and a second cutting control motor. It may include (133B5) and a second bite support (133B6).

The second external gear 133B1 may be formed in a ring shape in which a plurality of gear teeth are formed along the inner circumferential surface.

The second inner gear 133B2 is disposed inside the second outer gear 133B1, and a plurality of gear teeth may be formed along the outer circumferential surface.

The plurality of second transmission gears 133B3 are disposed between the second external gear 133B1 and the second internal gear 133B2, and rotate by meshing with the second internal gear 133B2 when the second internal gear 133B2 is rotated. As a result, the second external gear 133B1 may be rotated by transmitting a rotational force to the second external gear 133B1.

The plurality of second cutting bits 133B4 are disposed at equal intervals along the circumferential direction of the second external gear 133B1 on one surface of the second external gear 133B1, and rotated by the second external gear 133B1. The tube T is selectively contacted, and when the rotating drum 121 rotates, the tube T can be cut by pressing the outer surface of the tube T while rotating along the outer circumferential surface of the tube T. For example, the plurality of second cutting bits 133B4 may be formed in different shapes.

The second cutting control motor 133B5 may be configured to rotate the second inner gear 133B2.

The second bite support part 133B6 is coupled to the second inner gear 133B2 and rotates together with the second inner gear 133B2, and a plurality of second cutting bites 133B4 in the radial direction of the second inner gear 133B2 Can pressurize.

The second bite support part 133B6 may include a rotating body RB, a plurality of sockets S, a plurality of support brackets SB, and a plurality of elastic members SM.

The rotating body RB may be coupled to the second inner gear 133B2 and rotated by the second inner gear 133B2.

A plurality of sockets (S) may be spaced apart at equal intervals along the outer peripheral surface of the rotating body (RB).

The plurality of support brackets SB may support the plurality of second cutting bits 133B4.

A plurality of elastic members (SM) are disposed between the plurality of sockets (S) and the plurality of support brackets (SB), and elastically support the plurality of support brackets (SB) to support the plurality of support brackets (SB). It can be pressed toward the second cutting bite 133B4.

The second conveying unit 133C may press the second spacing control part 133A to separate the second rotating cutter 133B from the tube T. For example, the second conveying unit 133C may be configured to pressurize the second spacing control unit 133A with hydraulic pressure, or press the second spacing control unit 133A through a mechanical elastic means such as a spring. .

1 to 3, the control unit 14 is configured to control the work fixing unit 11, the rotating unit 12 and the cutting unit 13. That is, the control unit 14 is electrically connected to the work fixing unit 11, the rotating unit 12, and the cutting unit 13, and according to the control command input by the user, the work fixing unit 11 and the rotating unit 12 And the cutting part 13 can be controlled.

In addition, the cutting device 1 may further include a transfer plate 15, a work transfer unit 16 and a work storage unit 17.

The transfer plate 15 is disposed under the rotating part 12 and the control part 14 to support the rotating part 12 and the control part 14, and the workpiece fixing part 11, the rotating part 12, and the cutting part 13 And it may be configured to transfer the control unit 14 to one side or the other side along the axial direction of the tube (T).

The workpiece conveying part 16 is installed on the conveying plate 15 and disposed at the rear of the workpiece fixing part 11, and supports the tube T at a position spaced apart from the workpiece fixing part 11 by a preset distance, or While moving in the axial direction of (T), it may be configured to supply the tube (T) to the workpiece fixing portion (11).

The workpiece transfer unit 16 may include a tube support unit 161 and a tube transfer unit 162.

The tube support unit 161 may be disposed at the rear of the rotating part 12 to support the tube T, and press the tube T to transfer the tube T.

8 is a front view schematically showing the tube support unit of the cutting device according to an embodiment of the present invention.

8, the tube support unit 161 may include a tube support bracket (161A), a first tube support module (161B), a second tube support module (161C) and a third tube support module (161D). have.

The tube support bracket 161A is coupled to the tube transfer unit 162 and may be transferred by the tube transfer unit 162.

The first tube support module 161B may be disposed on the lower side of the tube support bracket 161A and may be configured to support the lower portion of the tube T accommodated inside the tube support bracket 161A.

The second tube support module 161C may be disposed on one side of the tube support bracket 161A and may be configured to support one side of the tube T accommodated inside the tube support bracket 161A.

The third tube support module 161D may be disposed on the other side of the tube support bracket 161A and may be configured to support the other side of the tube T accommodated inside the tube support bracket 161A.

For example, the first tube support module 161B, the second tube support module 161C, and the third tube support module 161D are supported while pressing the tube T in the radial direction of the tube T, or A support roller (R1) configured to move while pressing the tube (T) in the axial direction of the tube (T), a roller drive motor (R2) configured to rotate the support roller (R1), and a support roller (R1) ) To be rotatably supported, and a roller support bracket (R3) configured to move the support roller (R1) in the radial direction of the tube (T), and the roller support bracket (R3) is connected to the tube (T) while extending or contracting. It may include a roller conveying unit (R4) configured to move in the radial direction of.

2 and 3, the tube transfer unit 162 may be configured to transfer the tube support unit 161.

The tube transfer unit 162 may include a drive shaft 162A, a plurality of support units 162B, a drive shaft rotation motor 162C, and a transfer nut 162D.

The drive shaft 162A is disposed on the upper side of the transfer plate 15, and a spiral groove may be formed on the outer peripheral surface along the axial direction.

The plurality of support units 162B may be installed on the transfer plate 15 to rotatably support one side and the other side of the drive shaft 162A.

The drive shaft rotation motor 162C may be configured to rotate the drive shaft 162A.

The transfer nut 162D is screwed to the outer peripheral surface of the drive shaft 162A, and when the drive shaft 162A rotates, the tube support unit 161 coupled to the upper side may be moved while moving along the outer surface of the drive shaft 162A.

The workpiece storage unit 17 is disposed in front of the rotating unit 12 to accommodate the chips falling downward of the tube T when the tube T is cut, and guides the cut tube T in one direction. It can be configured to be accommodated inside.

The workpiece storage unit 17 may include a first storage unit 171, a second storage unit 172 and a tube guide member 173.

The first storage unit 171 is coupled to the transfer plate 15 and disposed in front of the rotating drum 121, and accommodates the cutting chips falling downward of the tube T when the tube T is cut. I can.

The second storage unit 172 may accommodate the tube T cut by the cutting unit 13 inside.

The tube guide member 173 may be disposed between the first storage unit 171 and the second storage unit 172 and may be configured to guide the cut-off tube T to the second storage unit 172. .

In addition, the cutting device 1 may further include a position control unit 18.

2 and 3, the position control unit 18 is disposed under the transfer plate 15 to transfer the transfer plate 15 along the axial direction of the tube T, and the rear of the workpiece transfer unit 16 It can be configured to support the tube (T).

The position control unit 18 includes a fixed plate 181 seated and fixed on an installation surface, disposed on the fixed plate 181, and coupled to the transfer plate 15 to connect the transfer plate 15 to the axis of the tube T. The driving unit 182 configured to transport along the direction, the guide rail 183 configured to guide the driving unit 182 in the axial direction of the tube T, and disposed at the rear of the workpiece transport unit 16 It may include a tube support 184 configured to support the tube (T).

For example, the driving unit 182 is disposed on the upper side of the fixing plate 181, a screw shaft 182A having a spiral groove formed on an outer circumferential surface along the longitudinal direction, and one side of the screw shaft 182A, and A plurality of support units 182B rotatably supporting the other side, a shaft drive motor 182C configured to rotate the screw shaft 182A, and a screw shaft 182A coupled to the bottom of the transfer plate 15 ) Is screwed to the outer circumferential surface of the screw shaft, and is configured to transfer the transfer plate 15 while moving along the outer surface of the screw shaft 182A when the screw shaft 182A rotates, and the transfer plate 15 It may include a slide block (182E) that is coupled to the bottom surface of the shopping mall guide rail 183, and slides along the guide rail (183) when the transfer plate (15) is moved.

As the cutting part 13 rotates the circumference of the tube T at low speed, cutting the outer surface of the tube T step by step, preventing deformation and damage of the cut part when cutting the tube T, and Excellent quality can prevent post-processing or reprocessing.

In addition, since the cutting part 13 rotates at a low speed and cuts the tube T, dust is not generated, and chips generated during the cutting can be prevented from falling under the tube T and scattering around the tube. have.

In addition, by significantly reducing the working time through the plurality of cutting units (132, 133), it is possible to improve productivity, and support the tube (T) multiplely through the inner diameter adjustment unit 112 and the clamping unit 113 When fixing and cutting, by blocking torsion and vibration of the tube T due to the load applied to the tube T, a more precise cutting operation may be possible.

In addition, each cutting unit (132, 133) is able to precisely adjust the gap between the tube (T) and the cutting bites (132B4, 133B4) through the gap adjustment unit (132A, 133A) and bite support (132B6, 133B6) The depth at which the cutting bites 132B4 and 133B4 cut the tube T can be controlled according to the material, thickness, and diameter of the tube T, and a plurality of cutting bites 132B4 and 133B4 can be selected through a rotating structure. Can be replaced with a tube (T) can be cut in various conditions.

In addition, by providing a workpiece transfer unit 16 and a tube support 184 at the rear of the cutting unit 13, the tube T is transferred to the cutting unit 13 by a set length, and the tube T is at a plurality of positions. It can be supported in the tube (T) to prevent sagging and bending deformation of the tube.

In the above, preferred embodiments of the present invention have been illustrated and described, but the present invention is not limited to the specific embodiments described above, and is generally used in the technical field to which the present invention belongs without departing from the gist of the present invention claimed in the claims. Various modifications are possible by those skilled in the art of course, and these modifications should not be individually understood from the technical idea or perspective of the present invention.

1. Cutting device
11. Workpiece fixing part
111. Chuck
111A. article
112. Inner diameter adjustment part
112A. 1st pressure pad
112B. Pad feed axis
112C. Feed axis control motor
113. Clamping part
113A. 2nd pressure pad
113B. Pressure cage
113C. Elastic member
114. Clamping control
12. Rotating part
121. Rotating Drum
122. Drum Drive Motor
13. Cutting part
131. Support frame
132. First cutting unit
132A. 1st spacing adjustment part
132A1. 1st rack gear
132A2. 1st pinion gear
132A3. 1st transfer jig
132A4. 1st clearance control motor
132B. 1st rotating cutter
132B1. First external gear
132B2. First internal gear
132B3. First transmission gear
132B4. 1st cutting bite
132B5. 1st cutting control motor
132B6. 1st bite support
RB. Rotating body
S. socket
SB. Support bracket
SM. Elastic member
132C. 1st transfer unit
133. Second cutting unit
133A. 2nd spacing control part
133A1. 2nd rack gear
133A2. 2nd pinion gear
133A3. 2nd transfer jig
133A4. 2nd clearance control motor
133B. 2nd rotating cutter
133B1. 2nd external gear
133B2. 2nd internal gear
133B3. 2nd transmission gear
133B4. 2nd cutting bite
133B5. 2nd cutting control motor
133B6. 2nd bite support
RB. Rotating body
S. socket
SB. Support bracket
SM. Elastic member
133C. 2nd transfer unit
14. Control unit
15. Transfer plate
16. Work piece transfer part
161. Tube support unit
161A. Tube support bracket
161B. 1st tube support module
161C. 2nd tube support module
161D. 3rd tube support module
R1. Support roller
R2. Roller drive motor
R3. Roller support bracket
R4. Roller conveying part
162. Tube transfer unit
162A. driving axle
162B. Support unit
162C. Rotary motor
162D. Transfer nut
17. Workpiece storage
171. The first storage unit
172. Second storage unit
173. Tube guide member
18. Position control
181. Fixed plate
182. Drive unit
182A. Screw shaft
182B. Support unit
182C. Shaft drive motor
182D. Transfer block
182E. Slide block
183. Guide rail
184. Tube support
T. Tube

Claims (2)

A work fixing part configured to fix the tube by pressing the outer surface of the tube;
A rotation unit configured to receive the work fixing unit inside and rotate along the outer circumferential surface of the tube;
A cutting unit disposed on an outer surface of the rotating unit and configured to cut the tube by stepwise pressing the outer circumferential surface of the tube while being rotated along the outer circumferential surface of the tube by the rotating unit; And
And a control unit configured to control the work fixing unit, the rotation unit, and the cutting unit,
It is disposed under the rotation unit and the control unit to support the rotation unit and the control unit, and is configured to transfer the work fixing unit, the rotation unit, the cutting unit and the control unit to one side or the other side along the axial direction of the tube. Transfer plate;
It is installed on the transfer plate and disposed at the rear of the work fixing part, and supports the tube at a position spaced apart from the work fixing part by a preset distance, or moves the tube in the axial direction of the tube while moving the tube to the work fixing part. Work piece transfer unit configured to be supplied to; And
Further comprising a workpiece storage unit disposed in front of the rotation unit to receive a chip falling downward of the tube when cutting the tube, and guide the cut tube in one direction to receive therein,
The workpiece fixing part,
A chuck comprising a plurality of jaws disposed at equal intervals along the outer circumferential surface of the tube and configured to press the outer circumferential surface of the tube;
A plurality of inner diameter adjustment units disposed at equal intervals along the outer circumferential surface of the chuck and configured to simultaneously press two jaws, respectively;
A clamping portion of the box disposed at equal intervals along the outer circumferential surface of the plurality of inner diameter adjusting portions and configured to simultaneously press the two inner diameter adjusting portions; And
And a clamping control unit connected to the plurality of clamping units and disposed on an outer surface of the rotation unit, and configured to control the plurality of clamping units through user manipulation,
The plurality of inner diameter adjustment units,
A first pressure pad configured to press the outer peripheral surfaces of the two sets;
A pad transfer shaft screwed to the first pressure pad and configured to generate a rotational force to make the first pressure pad in close contact with the outer circumferential surfaces of the two sets, or to separate the first pressure pad from the outer circumferential surfaces of the two sets; And
It includes a transfer shaft control motor configured to rotate the pad transfer shaft,
The plurality of clamping parts,
A second pressing pad configured to press the outer peripheral surfaces of the two first pressing pads;
A pressure cage connected to the clamping control unit and configured to be moved toward the second pressure pad by the clamping control unit or spaced apart from the second pressure pad; And
It is disposed between the second pressure pad and the pressure cage, and includes an elastic member configured to elastically support the second pressure pad and the pressure cage,
The rotating part,
A rotating drum in which the chuck is disposed, the cutting part is disposed on one surface, and is configured to rotate along a circumference of the chuck; And
It is coupled to the rotating drum and includes a drum driving motor configured to rotate the rotating drum,
The cutting part,
A support frame installed on one surface of the rotating drum, rotated by the rotating drum, and disposed around the tube disposed outside the rotating drum;
A first cutting unit disposed inside the support frame and configured to stepwise cut the outer peripheral surface of the tube by a predetermined depth while being rotated by the support frame; And
And a second cutting unit disposed inside the support frame, disposed opposite to the first cutting unit, and configured to cut the outer peripheral surface of the tube stepwise by a preset depth while being rotated by the support frame,
The second cutting unit cuts the outer circumferential surface of the tube while moving along the portion cut by the first cutting unit, and the first cutting unit and the second cutting unit have different cutting depths,
The first cutting unit,
A first gap adjusting unit configured to adjust a cutting depth of the first cutting unit by adjusting a gap between the first cutting unit and the tube;
A first rotating cutter configured to cut the tube while pressing the outer peripheral surface of the tube stepwise by the first gap adjusting unit; And
And a first conveying unit configured to press the first spacing control unit to separate the first rotating cutter from the tube,
The first gap adjustment unit,
A first rack gear disposed on the inner surface of the support frame and configured to be positioned in a vertical direction with respect to the moving direction of the first spacing control unit;
A first pinion gear meshed with the first rack gear and configured to move along the first rack gear by generating a rotational force;
The first rotating cutter and the first pinion gear are disposed inside, and while being moved by the first pinion gear, the distance between the first rotating cutter and the tube is adjusted, and the first rack gear is the A first transfer jig configured to be pressurized by the first transfer unit to be spaced apart from the tube when spaced apart from the first pinion gear; And
And a first gap control motor configured to rotate the first pinion gear,
The first rotating cutter,
An annular first outer gear having a plurality of gear teeth formed along the inner circumferential surface;
A first inner gear disposed inside the first outer gear and having a plurality of gear teeth formed along an outer peripheral surface thereof;
It is disposed between the first external gear and the first internal gear, and rotates while being engaged with the first internal gear when the first internal gear rotates while transmitting a rotational force to the first external gear to rotate the first external gear A plurality of first transmission gears;
It is disposed on one surface of the first external gear at equal intervals along the circumferential direction of the first external gear and selectively contacts the tube while being rotated by the first external gear, and the tube is rotated when the rotating drum is rotated. A plurality of first cutting bits configured to cut the tube by pressing the outer surface of the tube while being rotated along the outer peripheral surface of the tube;
A first cutting control motor configured to rotate the first inner gear; And
A first bite support unit coupled to the first inner gear and rotated together with the first inner gear, and configured to press the plurality of first cutting bites in a radial direction of the first inner gear,
The plurality of first cutting bits are formed in different shapes,
The first bite support,
A rotating body coupled to the first internal gear and rotated by the first internal gear;
A plurality of sockets disposed at equal intervals along the outer circumferential surface of the rotating body;
A plurality of support brackets supporting the plurality of first cutting bits; And
And a plurality of elastic members disposed between the plurality of sockets and the plurality of support brackets and configured to elastically support the plurality of support brackets to press the plurality of support brackets toward the plurality of first cutting bits And
The second cutting unit,
A second gap adjusting unit configured to adjust a cutting depth of the second cutting unit by adjusting a gap between the second cutting unit and the tube;
A second rotating cutter configured to cut the tube while pressing the outer peripheral surface of the tube stepwise by the second gap adjusting unit; And
And a second conveying unit configured to press the second spacing control unit to separate the second rotating cutter from the tube,
The second gap adjustment unit,
A second rack gear disposed on the inner surface of the support frame and configured to enable position adjustment along a vertical direction with respect to the moving direction of the second space control unit;
A second pinion gear meshed with the second rack gear and configured to move along the second rack gear by generating a rotational force;
The second rotating cutter and the second pinion gear are disposed inside, and while being moved by the second pinion gear, the distance between the second rotating cutter and the tube is adjusted, and the second rack gear is the A second transfer jig configured to be separated from the tube by being pressurized by the second transfer unit when spaced apart from the second pinion gear; And
And a second gap control motor configured to rotate the second pinion gear,
The second rotating cutter,
An annular second outer gear having a plurality of gear teeth formed along the inner circumferential surface;
A second inner gear disposed inside the second outer gear and having a plurality of gear teeth formed along an outer peripheral surface thereof;
It is disposed between the second external gear and the second internal gear, and when the second internal gear rotates, the second external gear rotates by transmitting a rotational force to the second external gear while being engaged with the second internal gear and rotating. A plurality of second transmission gears;
It is disposed on one surface of the second external gear at equal intervals along the circumferential direction of the second external gear and selectively contacts the tube while being rotated by the second external gear, and when the rotating drum rotates, the tube A plurality of second cutting bits configured to cut the tube by pressing the outer surface of the tube while being rotated along the outer peripheral surface of the tube;
A second cutting control motor configured to rotate the second inner gear; And
A second bite support portion coupled to the second inner gear and rotated together with the second inner gear, and configured to press the plurality of second cutting bites in a radial direction of the second inner gear,
The plurality of second cutting bits are formed in different shapes,
The second bite support part,
A rotating body coupled to the second internal gear and rotated by the second internal gear;
A plurality of sockets disposed at equal intervals along the outer circumferential surface of the rotating body;
A plurality of support brackets supporting the plurality of second cutting bits; And
A plurality of elastic members disposed between the plurality of sockets and the plurality of support brackets, and configured to elastically support the plurality of support brackets to press the plurality of support brackets toward the plurality of second cutting bits And
The workpiece transfer unit,
A tube support unit disposed at the rear of the rotation unit to support the tube and pressurize the tube to transfer the tube; And
It includes a tube transfer unit configured to transfer the tube support unit,
The tube support unit,
A tube support bracket coupled to the tube transfer unit and transferred by the tube transfer unit;
A first tube support module disposed on a lower side of the tube support bracket and configured to support a lower portion of the tube accommodated inside the tube support bracket;
A second tube support module disposed on one side of the tube support bracket and configured to support one side of the tube accommodated inside the tube support bracket; And
And a third tube support module disposed on the other side of the tube support bracket and configured to support the other side of the tube accommodated inside the tube support bracket,
The first tube support module, the second tube support module, and the third tube support module,
A support roller configured to support while pressing the tube in a radial direction of the tube, or to move while pressing the tube in the axial direction of the tube;
A roller drive motor configured to rotate the support roller;
A roller support bracket configured to rotatably support the support roller and move the support roller in a radial direction of the tube; And
It includes a roller conveying part configured to move the roller support bracket in the radial direction of the tube while being stretched or contracted,
The tube transfer unit,
A drive shaft disposed above the transfer plate and having a spiral groove formed on an outer circumferential surface along the axial direction;
A plurality of support units installed on the transfer plate to rotatably support one side and the other side of the drive shaft;
A drive shaft rotation motor configured to rotate the drive shaft; And
A transfer nut that is screwed to an outer circumferential surface of the drive shaft and moves the tube support unit coupled to an upper side while moving along the outer surface of the drive shaft when the drive shaft rotates;
The workpiece storage unit,
A first storage unit coupled to the transfer plate, disposed in front of the rotating drum, and configured to accommodate cutting chips falling downward of the tube when the tube is cut;
A second storage unit configured to receive the tube cut by the cutting unit therein; And
And a tube guide member disposed between the first storage unit and the second storage unit and configured to guide the cut-off tube to the second storage unit.
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